13

LTC3402

3402fb

3

10

2

6

1

3404 TA05a

LTC3402

SHDN

MODE/SYNC

PGOOD

SW

FB

GND

4

7

8

9

5

C3

470pF

C4

20pF

1

CELL

C1

3.3

μF

R3

1M

R5

39k

R2

866k

R1

619k

D1

3V

500mA

L1

2.2

μH

C2

10

μF

C1: TAIYO YUDEN JMK212BJ335MG

C2: TAIYO YUDEN JMK325BJ106MM

D1: ON SEMICONDUCTOR MBRM120T3

L1: COILCRAFT DO1608-222

0 = FIXED FREQUENCY

1 = Burst Mode OPERATION

10k

+

R4

5.1M

TYPICAL APPLICATIO S

Single Cell to 3V at 500mA, All Ceramic Capacitor, 3MHz Step-Up Converter

Efficiency

OUTPUT CURRENT (mA)

20

40

50

70

90

0.1

10

100

1000

3402 TA05b

0

1

60

30

10

80

Burst Mode

OPERATION

3MHz FIXED

FREQUENCY

Li-Ion to 5V at 300mA, 1MHz Step-Up Converter

Efficiency

3

10

2

6

1

3402 TA07a

LTC3402

SHDN

MODE/SYNC

PGOOD

SW

FB

GND

4

7

8

9

5

C3

470pF

C4

4.7pF

Li-Ion

C1

4.7

μF

R3

1M

R5

82k

30.1k

R2

1.65M

R1

549k

D1*

5V

600mA

L1

10

μH

C2*

22

μF

*LOCATE COMPONENTS AS CLOSE TO

IC AS POSSIBLE

C1: TAIYO YUDEN JMK212BJ475MG

C2: TAIYO YUDEN JMK325BJ226MM

D1: ON SEMICONDUCTOR MBRM120T3

L1: SUMIDA CDH53-100

0 = FIXED FREQUENCY

1 = Burst Mode OPERATION

LOAD CURRENT (mA)

0.1

0

10

30

40

50

100

70

20

80

90

60

110

100

1000

1MHz

FIXED

FREQUENCY

Burst Mode OPERATION